Chevrolet Cutaway P30 (1985-1997) Computer data lines, motor home chassis

6.5L 7.4L VIN J 6.5L VIN F 7.4L VIN J, 6.5L VIN F ONLY BLK WIRE DATA CLSS 2 DATA LINK CONNECTOR (LEFT SIDE SUPPORT BRACKET OF STEERING COLUMN) DIAG ENABLE DIAG SIG ELECTRONIC BRAKE CONTROL MODULE (ABS CROSSMEMBER) ENG-BAT FUSE HOT AT ALL TIMES I/P FUSE BLOCK ORG/ WIRE POWERTRAIN CONTROL MODULE (6.5L VIN F ONLY) (LEFT SIDE OF DRIVER'S ISLAND) POWERTRAIN CONTROL MODULE (7.4L VIN N ONLY) (LEFT SIDE OF DRIVER'S ISLAND) PPL PPL SERIAL DATA SERIAL DATA TAN WIRE TAN/WHT WIRE VEHICLE CONTROL MODULE (7.4L VIN J ONLY) (TOP OF RADIATOR SUPPORT) WHT/BLK WIRE